From my understanding, it's not really a "test" itself: it's an additionl score/measurement they can add TO the DXA imaging test. (If the facility's technology has this software capability - few do.)

I had to search far and wide for a place with TBS scoring capability. It measure strength of the bone where the traditional DXA measures density/thickness of bone. So potentially someone could have thinner bones, but strong. Or at least, that's my hope!

I don't mind starting on Tymlos, but the followup maintenance drugs are going to be a real problem for me.